Vulnerability in Linux

CVE-2026-23246

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration link_id is taken from the ML Reconfiguration element (control & 0x000f), so it can be 0..15. link_removal_timeout[] has IEEE80211_MLD_MAX_NUM_LINKS (15) elements, so index 15 is out-of-bounds. Skip subelements with link_id >= IEEE80211_MLD_MAX_NUM_LINKS to avoid a stack out-of-bounds write.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.003 (19.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-23246: held from 0.003 to 0.003.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000

Affected products

  • Linux — versions 8eb8dd2ffbbb6b0b8843b66754ee9f129f1b2d6c, 6.5, 0
  • Linux Kernel — versions 6.5, 7.0

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-23246?
CVE-2026-23246 is a high-severity vulnerability in Linux, classified under Improper Validation of Array Index. CVSS score: 8.8/10. Published 2026-03-18.
How severe is CVE-2026-23246?
High severity. CVSS v3 base score is 8.8 out of 10.